Question

How do you find the LCM???

I know that I asked how to find the LCM of 8 and 9 but I don't know what to multiply by to get it.

Answer 1

If you know the LCM then you divide it by the other number.
If you don't already know it: is 8 a factor of 9 or do they have equal factors? No.
Is 9 a factor of 8 or do they have equal factors? No.
The easy way: multiply 8 by 9 to get LCM :)